Silver halide color photographic material
Abstract
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, the silver halide color photographic material containing at least one pyrazoloazole type coupler represented by the general formula (I) and at least one compound represented by the general formula (II). ##STR1## wherein R 1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon coupling reacti1 Za, Zb and Zc each represents a methine group, a substituted methine grou ═N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond; when the Zb--Zc bond is a carbon-carbon double bond, the Zb--Zc bond may be a part of a condensed aromatic ring; R 1 or X may also form a polymer including a dimer or more; and when Za, Zb or Zc is a substituted methine group, the substituted methine group may form a polymer including a dimer or more, with the proviso that when Za and Zb are nitrogen atoms and Zc is a methine group or a substituted methine group, X is not a hydrogen atom, ##STR2## wherein M represents nickel, cobalt, maganese, copper, iron, zinc, palladium or platinum; an R 5 and R 6 , each represesnts an alkyl group, aryl group, alkoxy group, alkylthio group, aryloxy group or an arylthio group. The silver halide color photographic material provides magenta color image having improved fastness to light, humidity and heat without accompanying with coloration of white background.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, the silver halide color photographic material containing at least one pyrazoloazole type coupler represented by the general formula (I) described below and at least one compound represented by the general formula (II) described below ##STR15## wherein R 1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, ═N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond; when the Zb--Zc bond is a carbon-carbon double bond, the Zb--Zc bond may be a part of a condensed aromatic ring; R 1 or X may also form a polymer including a dimer or more; and when Za, Zb or Zc is a substituted methine group, the substituted methine group may form a polymer including a dimer or more, with the proviso that when Za and Zb are nitrogen atoms and Zc is a methine group or a substituted methine group, X is not a hydrogen atom, ##STR16## wherein M represents a nickel atom, a cobalt atom, a manganese atom, a copper atom, a iron atom a zinc atom, a palladium or a platinum atom; R 5 and R 6 , which may be the same or different, each represents an alkyl group, an aryl group, an alkoxy group, an alkylthio group, an aryloxy group or an arylthio group.
2. A silver halide color photographic material as claimed in claim 1, wherein the pyrazoloazole type coupler is a bis coupler or a polymer coupler containing a coupler moiety represented by the general formula (I).
3. A silver halide color photographic material as claimed in claim 2, wherein the polymer coupler is a homopolymer composed of a monomer having a coupler moiety represented by the general formula (I) or a copolymer composed of a monomer having a coupler moiety represented by the general formula (I) and a non-color forming ethylenic monomer which does not undergo coupling with the oxidation product of an aromatic primary amine developing agent.
4. A silver halide color photographic material as claimed in claim 1, wherein the pyrazoloazole type coupler is represented by the following general formula (I-1), (I-2), (I-3), (I-4), (I-5) or (I-6): ##STR17## wherein R 2 , R 3 and R 4 , which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, a heterocyclic group, a cyano group, an alkoxy group, an aryloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, a silyloxy group, a sulfonyloxy group, an acylamino group, an anilino group, a ureido group, an imido group, a sulfamoylamino group, a carbamoylamino group, an alkylthio group, an arylthio group, a heterocyclic thio group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonamido group, a carbamoyl group, an acyl group, a sulfamoyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group or an aryloxycarbonyl group; and X 2 represents a hydrogen atom, a halogen atom, a carboxy group or a group capable of being released upon coupling which is bonded to the carbon atom at the coupling position through an oxygen atom, a nitrogen atom or a sulfur atom; or R 2 , R 3 , R 4 or X 2 is a divalent group to form a bis coupler.
5. A silver halide color photographic material as claimed in claim 4, wherein X 2 is other than the hydrogen atom.
6. A silver halide color photographic material as claimed in claim 4, wherein the pyrazoloazole type coupler is a polymer coupler in which the coupler moiety derived from the coupler represented by the general formula (I-1), (I-2), (I-3), (I-4), (I-5) or (I-6) is present in a vinyl monomer, and R 2 , R 3 or R 4 represents a chemical bond or a linking group, through which the coupler moiety is connected to the vinyl group in the vinyl monomer.
7. A silver halide color photographic material as claimed in claim 4, wherein the divalent group to form a bis coupler represented by R 2 , R 3 , R 4 or X 2 is a substituted or unsubstituted alkylene group, a substituted or unsubstituted phenylene group or a group of the formula --NHCO--R--CONH--, wherein R represents a substituted or unsubstituted alkylene group or a substituted or unsubstituted phenylene group.
8. A silver halide color photographic material as claimed in claim 6, wherein the linking group represented by R 2 , R 3 or R 4 is a substituted or unsubstituted alkylene group, a substituted or unsubstituted phenylene group, --NHCO--, --CONH--, --O--, --OCO--, an aralkylene group or a combination thereof.
9. A silver halide color photographic material as claimed in claim 6, wherein the vinyl group may further have a substituent selected from a chlorine atom and a lower alkyl group having from 1 to 4 carbon atoms in addition to the coupler moiety.
10. A silver halide color photographic material as claimed in claim 6, wherein the polymer coupler is a homopolymer.
11. A silver halide color photographic material as claimed in claim 6, wherein the polymer coupler is a copolymer.
12. A silver halide color photographic material as claimed in claim 6, wherein the polymer coupler is a copolymer containing a repeating unit derived from a non-color forming ethylenic monomer which does not couple with the oxidation product of an aromatic primary amine developing agent.
13. A silver halide color photographic material as claimed in claim 12, wherein the non-color forming ethylenic monomer is an acrylic acid, an ester of acrylic acid, an amide of acrylic acid, a vinyl ester, an acrylonitrile, an aromatic vinyl compound, itaconic acid, citraconic acid, crotonic acid, vinylidene chloride, a vinyl alkyl ether, maleic acid, maleic anhydride, an ester of maleic acid, N-vinyl-2-pyrrolidone, N-vinyl pyridine or 2- or 4-vinyl pyridine.
14. A silver halide color photographic material as claimed in claim 4, wherein the pyrazoloazole type coupler is represented by the general formula (I-1) or (I-4).
15. A silver halide color photographic material as claimed in claim 6, wherein the coupler moiety for the polymer coupler is derived from the coupler represented by the general formula (I-1) or (I-4).
16. A silver halide color photographic material as claimed in claim 1, wherein M represents a nickel atom.
17. A silver halide color photographic material as claimed in claim 1, wherein an amount of the compound represented by the general formula (II) is from 1 mol% to 100 mol% based on the coupler represented by the general formula (I).
18. A silver halide color photographic material as claimed in claim 1, wherein the silver halide color photographic material further contains a dialkoxybenzene color fading preventing agent.
19. A silver halide color photographic material as claimed in claim 1, wherein the silver halide color photographic material further contains an ultraviolet ray absorbing agent.
20. A silver halide color photographic material as claimed in claim 1, wherein the pyrazoloazole type coupler represented by the general formula (I) and the compound represented by the general formula (II) is present in the same silver halide emulsion layer.
21. A silver halide color photographic material as claimed in claim 20, wherein the silver halide emulsion layer is a green-sensitive silver halide emulsion layer.Join the waitlist — get patent alerts
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